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प्रश्न
What are the methods of cancer detection? Describe the common approaches for treatment of cancer.
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उत्तर
Early detection of cancer is essential. The methods of cancer detection and diagnosis are as follows.
- Biopsy and histopathological studies of the tissue/blood/bone marrow.
- Tests for increased cell counts (in the case of leukaemia blood cancer).
- Techniques like radiography (use of X-rays), CT (computed tomography) and MRI (Magnetic Resonance Imaging) to detect cancers of the internal organs.
- Detection of cancer-specific antigens.
- Molecular biology techniques to detect genes in individuals with inherited susceptibility to certain cancers.
The common approaches for the treatment of cancer
- Surgical removal of tumour.
- Irradiation of tissue to kill cancerous cells.
- Immunotherapy using interferon to boost cancer cell killing.
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संबंधित प्रश्न
Name any two techniques that are useful in detecting cancers of internal organs.
The antiviral proteins released by a virus-infected cell are called.
Give the symptoms of cancer.
Enlist any four therapies used to treat a cancer patient.
- How is a tumor formed in the body?
- What are the two types of tumor?
- Which of these under goes metastasis?
Which type of cancer affects lymph nodes and spleen?
Cancer of the epithelial cells is called ______.
Carcinogens are cancer causing agents.
What is metastasis?
How is a cancer cell different from a normal cell?
How do normal cells get transformed into cancerous neoplastic cells? Elaborate giving three examples of inducing agent.
One of the following is INCORRECT about cancer cells.
Cancer causing genes are called ______.
If a patient is advised Anti Retroviral Therapy, which infection is he suffering from? Name the causative organism.
In the given flow diagram, the replication of retrovirus in a host is shown. Observe and answer the following questions.
Fill in (1) and (2)
Why is the virus called retrovirus?
Can the infected cell survive while viruses are being replicated and released?
Which disease is caused by HPV?
Treatment of cancer by X-rays or gamma rays is ______.
Name any two techniques used to detect the cancer of internal organs and write about any one of them.
Immunotherapy these days is one of the most efficient ways of treatment of cancer. The therapy involved activates the immune system and destroys the tumour.
- Write an example of one such biological response modifier used in immunotherapy.
- Why do patients need such substances if immune system is already working in body?
- State what is 'Contact inhibition'.
